package com.apple.controller;

import com.apple.common.R;
import com.apple.entity.Employee;
import com.apple.service.EmployeeService;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;
    /**
    * 员工登录
    * @param request
    * @param employee
    * @return
    * */
    @PostMapping("/login")
    public R<Employee>login(HttpServletRequest request, @RequestBody Employee employee){// @RequestBody将json数据封装到employee中
        // 1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
         password = DigestUtils.md5DigestAsHex(password.getBytes());
        // 2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();// 查询条件
        queryWrapper.eq(Employee::getUsername,employee.getUsername());//等值查询
        Employee emp=employeeService.getOne(queryWrapper);
        //3.如果没有查询到则返回登录失败结果
        if(emp==null){
            return R.error("登录失败");
        }
        //4、密码比对，如果不一致则返回登录失败结果
        if(!emp.getPassword().equals(password)){
            return R.error("登录失败");
        }
        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(emp.getStatus()==0){
            return R.error("账号已禁用");
        }
        //6、登录成功，将员工id存入redis并返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }
    /**
    * 员工退出
    * @param request
    * @return
    * */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        log.info("退出成功");
        return R.success("退出成功");
    }
    /**
    * 新增员工
    * @param employee
    * @return
    * */
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        //设置初始密码123456，需要进行md5加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
//        //设置创建时间 统一在MyMetaObjecthandler中完成
//        employee.setCreateTime(LocalDateTime.now());//LocalDateTime.now()获取当前时间
//        //设置更新时间
//        employee.setUpdateTime(LocalDateTime.now());
//        //设置创建人id
//        employee.setCreateUser((Long) request.getSession().getAttribute("employee"));
//        //设置更新人id
//        employee.setUpdateUser((Long) request.getSession().getAttribute("employee"));

        employeeService.save(employee);
        log.info("新增员工，员工信息：{}",employee.toString());
        return R.success("新增员工成功");
    }
    /**
    * 员工信息查询
    * @param page
    * @param pageSize
    * @return
    * */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        log.info("员工信息分页请求page={},pageSize={},查询name={}",page,pageSize,name);
        //构造分页构造器
        Page pageInfo = new Page(page,pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        queryWrapper.like(name!=null,Employee::getName,name);//添加过滤条件
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }
    /**
    * 根据ID修改员工信息
    * @param employee
    * @return
    * */
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info("更新请求："+employee.toString());
//        //设置更新时间
//        employee.setUpdateTime(LocalDateTime.now());
//        //设置更新人id
//        employee.setUpdateUser((Long) request.getSession().getAttribute("employee"));
        //更新员工信息
        employeeService.updateById(employee);
        return R.success("员工信息修改成功");
    }
    /**
    * 根据id查询员工信息
    * @param id
    * @return
    * */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息：{}",id);
        Employee employee = employeeService.getById(id);
        if(employee!=null){
            return R.success(employee);
        }
        return R.error("没有查询到员工信息");
    }
}
